<lv-collapse [lvBeforeExpanded]="beforeExpanded" [lvAfterExpanded]="afterExpanded">
  <lv-collapse-panel [lvTitle]="'Panel 001'" [lvId]="'p1'">
    <div class="content">
      This is content...<br />
      This is content...<br />
      This is content...<br />
    </div>
  </lv-collapse-panel>
  <lv-collapse-panel [lvTitle]="'Panel 002'" [lvId]="'p2'">
    <div class="content">
      This is content...<br />
      This is content...<br />
      This is content...<br />
    </div>
  </lv-collapse-panel>
  <lv-collapse-panel [lvTitle]="'Panel 003'" [lvId]="'p3'">
    <div class="content">
      This is content...<br />
      This is content...<br />
      This is content...<br />
    </div>
  </lv-collapse-panel>
</lv-collapse>